Papers gains support for signing digital certificates.
Papers gains support for signing digital certificates.

gitlab.gnome.org Add digital certificates signing support (!296) · Merge requests · GNOME / Incubator / Papers · GitLab
Add option to sign documents using a smartcard/pkcs11 certificate. I would kindly ask for a initial review please. This is a port of my...

What surprised me was that the author of the feature is an employee of Volkswagen who has worked on this on their behalf.